[HELP] Audio/video out of sync in output

[Selur]

By the way, is there an app like Hybrid for x265?

Hybrid does support x265.
Other than Hybrid there are tools like MeGui, StaxRip, which support different output formats and Avisynth/Vapoursynth.
Then there are also Handbrake (and different GUIs for it like Vidcoder) and there are also a bunch of FFmpeg based GUIs, problem with those are that they don't support usually allow the usage of Avisynth/Vapoursynth.

Cu Selur